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Small rectangular transceiver module with single RJ45 port silver finish

HP

HP J8177D 1G SFP RJ45 Transceiver

SKU CH-X8XB-BJBQB MPN J8177D

A transceiver with one RJ-45 port for 1000Base-T networking up to 100 metres over Cat5e cable

  • Device TypeTransceiver
  • Ports1 x RJ-45
  • Dimensions0.51" x 2.72" x 0.59"
  • Weight1
  • Gigabit copper connectivity through a single RJ-45 port
  • Hot-swappable SFP form factor fits standard switch slots
  • Reaches 100 m over Cat5e twisted-pair cabling
  • Compact 0.51" × 2.72" × 0.59" module saves chassis space
  • Lightweight 1 oz design eases high-density deployments

Gigabit SFP RJ45 transceiver

The HP J8177D is a small-form-factor module that adds a single copper RJ-45 port to an SFP slot. It operates at 1000Base-T speeds over twisted-pair cabling up to 100 metres. Network engineers use it to extend switches or routers with a standard Gigabit Ethernet link without replacing the host device. The unit weighs 1 and measures .51 by 2.72 by .59 inches.

Suits copper uplinks not fibre

This module fits administrators who need a short-reach copper connection between rack equipment using Cat5e or better cable. It does not support optical fibre, so buyers who require long-distance or single-mode links must choose a different transceiver type. The transceiver is also limited to 1 Gigabit throughput, so environments that need 10 Gigabit or higher speeds should look elsewhere.

1000Base-T over RJ-45

The decisive specification is the 1000Base-T interface on a single RJ-45 port, which determines whether the module matches the cabling and speed requirements of the link. If the network design calls for copper Gigabit Ethernet within 100 metres this part will work; any other media or speed requirement means a different module is needed.

Highlights

  • Gigabit copper connectivity through a single RJ-45 port
  • Hot-swappable SFP form factor fits standard switch slots
  • Reaches 100 m over Cat5e twisted-pair cabling
  • Compact 0.51" × 2.72" × 0.59" module saves chassis space
  • Lightweight 1 oz design eases high-density deployments

Specifications

BrandHP
ModelJ8177D
Device TypeTransceiver
Ports1 x RJ-45
Dimensions0.51" x 2.72" x 0.59"
Weight1
Shipping weight0.91 kg
Package size127 × 76 × 51 mm

Questions about this item

Does my switch need an open SFP slot to accept the J8177D?

Yes, the module plugs into a standard SFP port on the switch or router.

Will the 1000Base-T link negotiate down to 100 Mbps for my older Cat5 cabling?

The transceiver supports 1000Base-T only; it does not auto-negotiate to 100 Mbps on legacy Cat5.

How can I confirm the link is up at gigabit speed after installation?

Check the switch port LEDs or interface status for a 1000 Mbps connection indicator.

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